Process and apparatus for the manufacture of optical modules
CA 2037040 A1 · Owner: Chapelet, Franck · Inventors: Bretheau, Dominique; Chapelet, Franck; Laupretre, Jean-Jacques
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
For the continuous manufacture of optical modules incorporating optical fibres placed within ametal tube and embedded in a sealing product the fibres (F) are introduced into a rectilinear guide tube (10) and the metal tube (T) is progressively formed around said guide tube from a tape or ribbon (R). The metal tube is then welded along the joint line slightly upstream of the front end of the guide tube (10). In order to permanently check the length ratio between the fibres and the metal tube in the thus obtained optical module the fibres are, introduced into the guide tube at a speed determined in real time on the basis of the measured values of the tensile force exerted on the welded tube, …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed July 23, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 23, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 23, 2012.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.